Maryland College and Career-Ready Standards
MD.MA.5.G. Geometry (G)
5.G.B. Classify two-dimensional figures into categories based on their own properties.
5.G.B.3. Additional Standard: Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.
5.G.B.3.1. Knowledge of classifying two dimensional figures; see relationships among the attributes of two-dimensional figures.
5.G.B.4. Additional Standard: Classify two-dimensional figures in a hierarchy based on properties.
5.G.B.4.1. See the skills and knowledge that are stated in the standard.